when i put in my b16 into my crx. the exhaust manifold did not meet up with the exhaust pipe. there is also no cat on the car. my hf exhaust had a cat/header deal. so i ran pipe to match the new b16 header with my exaust for now till i get custom pipe...should i get a cat when i get new piping or should i just keep it eliminated.im afraid with no cat there wont be enough backpressure. can anyone put in some input..

 

doesnt do much either way makes your exhaust sound higher and louder with it out.